WEG UMBW-1D2-2 - MINI CIRCUIT BREAKER UMBW-1D2-2
WEG

UMBW-1D2-2

Alternate Item Number: 14361076

UPC: 7909492436614

Contact for Pricing

Overview

The WEG UMBW-1D2-2 Mini Circuit Breaker (MCB) is a compact yet robust solution designed for essential overcurrent protection in industrial electrical applications. Engineered by WEG, a globally recognized leader in motor and power solutions, this miniature circuit breaker combines thermal and magnetic trip mechanisms to deliver comprehensive protection against overloads and short-circuit conditions. The UMBW-1D2-2 is part of WEG's trusted UMBW series, which is widely adopted in motor circuits, distribution panels, and industrial power systems due to its reliability and precision engineering. Industrial facilities rely on MCBs like the UMBW-1D2-2 to safeguard critical infrastructure from electrical faults that could lead to equipment damage, downtime, or even catastrophic fires. Unlike fuses, which require replacement after a single fault, this WEG circuit breaker resets automatically once the fault is cleared, ensuring minimal disruption to operations. The thermal trip mechanism responds to sustained overloads, while the magnetic trip provides instantaneous protection against short circuits, making it ideal for protecting sensitive industrial equipment such as motors, transformers, and control panels. The UMBW-1D2-2 is particularly well-suited for branch circuit protection in industrial environments where space is at a premium. Its compact design allows for easy integration into crowded control panels or distribution boards without sacrificing performance. Professionals in industries such as manufacturing, oil & gas, mining, and renewable energy trust WEG’s MCBs for their consistent performance under demanding conditions. The breaker’s robust construction ensures durability in harsh environments, including high-temperature or vibration-prone areas, while its modular design simplifies installation and maintenance. Selecting the right MCB for an application requires careful consideration of factors such as current rating, trip characteristics, and coordination with upstream protective devices. WEG’s UMBW series is designed to meet international standards, ensuring compatibility with global electrical systems. The UMBW-1D2-2, in particular, is optimized for use in systems where reliable, maintenance-free protection is non-negotiable. Whether installed in a motor control center, a distribution panel, or a standalone application, this circuit breaker provides peace of mind with its proven track record in industrial settings. WEG’s reputation for innovation and quality makes the UMBW-1D2-2 a preferred choice among electrical engineers and maintenance teams. The company’s commitment to research and development ensures that its products incorporate the latest advancements in circuit protection technology, while rigorous testing guarantees compliance with stringent safety and performance standards. For professionals seeking a dependable, high-performance mini circuit breaker, the WEG UMBW-1D2-2 delivers unmatched reliability and protection for critical industrial applications.
  • Dual thermal and magnetic trip mechanisms for overload and short-circuit protection
  • Compact design ideal for space-constrained industrial panels
  • Automatic reset after fault clearance for minimal downtime
  • Rugged construction for harsh industrial environments
  • WEG’s trusted reliability in motor circuits and distribution systems

Specifications

Package Weight (Imperial)
0.7 LB
One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.

LCMA6-8-C

One-hole, metric conductor, standard barrel with window lug, 4-6mm wire, M8 stud hole.
JB5-2 2 POLE JUMPER 5.2MM SPACING

1SNK905302R0000

JB5-2 2 POLE JUMPER 5.2MM SPACING
JB5-5 5 POLE JUMPER 5.2MM SPACING

1SNK905305R0000

JB5-5 5 POLE JUMPER 5.2MM SPACING
Ground Lug

DNGL

Ground Lug
ZCT,LZR-030(V),EMPR,EXP

76512124011

ZCT,LZR-030(V),EMPR,EXP
INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

83411621001

INTERLOCK UNIT,AR-12M(SEPERATE),GMC(D)-6~16M

Frequently Asked Questions about WEG

What certifications and standards do WEG products comply with?

WEG products meet extensive international standards across multiple critical categories, including safety, electromagnetic compatibility (EMC), functional safety, and regulatory compliance. Key certifications include UL, cUL, CE, TÜV Rheinland, and compliance with international standards such as EN 61800 series, IEC 61508, ISO 13849-1, and directives like Low Voltage (2014/35/EU), EMC (2014/30/EU), and RoHS. Their products are certified for safe operation in various industrial environments, with specific standards covering electrical safety, thermal performance, electromagnetic immunity, and environmental protection.

What is WEG's warranty policy?

WEG offers an 18-month standard warranty for automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Repairs must be performed by authorized WEG service, and the warranty is limited to the replacement or repair of the product itself, excluding consequential damages. Extended warranty options are available, including purchasing additional coverage at 2.5% of the product's selling price per year, up to 4 additional years.

What industries and applications are WEG products used for?

WEG products are extensively used across multiple industrial sectors, including packaging equipment, material handling, food processing, pumps, medical/lab equipment, door/gate openers, office machinery, and lawn/garden applications. Their versatile DC motors and variable frequency drives (VFDs) are designed for general industrial use, with solutions ranging from off-the-shelf products to custom OEM designs that meet UL/CSA standards for diverse manufacturing and processing environments.

What technical support does WEG offer?

WEG offers comprehensive technical support through multiple channels, including a dedicated Automation Service Department accessible via toll-free phone (1-877-934-3748) and email ([email protected]). They maintain a global network of accredited service centers worldwide, which customers can locate on their website. Additionally, WEG provides warranty support and technical assistance for their industrial automation products, with pre-approval required for warranty repairs.

What are the key features of WEG products?

WEG products feature advanced industrial automation technologies with key characteristics including high performance, flexibility, and connectivity. Their flagship CFW900 Variable Speed Drive demonstrates core product strengths: intelligent thermal management, built-in safety functions, IoT readiness, advanced energy saving capabilities, and comprehensive communication protocols. WEG drives offer robust performance with features like 150% overload capacity, modern graphic HMI, plug-and-play expansion modules, and compatibility across multiple industrial segments including food and beverage, pulp and paper, and manufacturing.

What communication protocols do WEG products support?

WEG products support multiple industrial communication protocols across their product lines, including EtherNet/IP, Modbus-TCP, Modbus-RTU, CANopen, and optional protocols like Profibus-DP and DeviceNet. Specifically, the PLC500 offers 2x Gigabit Ethernet Ports, 1x CAN Port, and 1x RS485 port, enabling seamless integration with major industrial communication networks.

What environmental ratings do WEG products have?

WEG products feature multiple environmental ratings and protection classes. They offer Protection Class 3C2 as a standard coating and Protection Class 3C3 as an optional extra coating, both compliant with IEC 60721-3-3. Environmental specifications include air relative humidity from 5% to 95% non-condensing, altitude ratings up to 1,000m standard (with current derating above that), and Pollution Degree 2 classification with non-conductive pollution requirements.

What accessories are available for WEG products?

WEG offers a comprehensive range of accessories across multiple product lines. For variable frequency drives like the CFW900, accessories include I/O expansion modules, communication modules, encoder modules, temperature transducer modules, relay output modules, and HMI accessories. These accessories expand communication capabilities, input/output functions, and application flexibility. Most accessories are interchangeable between drive frames and can be installed in backplane slots, with communication network accessories limited to one per variable speed drive.

What are the main product lines offered by WEG?

WEG offers a comprehensive range of industrial automation products, including variable frequency drives (CFW series like CFW100, CFW300, CFW500), soft starters (SSW series including SSW05, SSW07, SSW900), and the innovative Motion Fleet Management (MFM) system for predictive maintenance and asset monitoring. Their product lines are designed to support industrial automation needs across various sectors, providing solutions for motor control, fleet management, and operational efficiency.

How are WEG products typically installed?

WEG products are typically installed with careful attention to mounting specifications, protection ratings, and airflow requirements. For variable speed drives like the CFW900, installation methods include surface mounting, flange mounting, and side-by-side configurations with specific clearance guidelines. Installers must follow precise dimensional requirements for each product frame size, ensuring proper ventilation and electrical connections.